{"id":1328,"date":"2020-05-21T15:47:09","date_gmt":"2020-05-21T19:47:09","guid":{"rendered":"https:\/\/blog.uvm.edu\/fruit\/2020\/05\/21\/fire-blight-alert-2\/"},"modified":"2020-05-21T15:47:09","modified_gmt":"2020-05-21T19:47:09","slug":"fire-blight-alert-2","status":"publish","type":"post","link":"https:\/\/blog.uvm.edu\/fruit\/2020\/05\/21\/fire-blight-alert-2\/","title":{"rendered":"Fire blight alert"},"content":{"rendered":"<p>By <a href=\"mailto:Terence.Bradshaw@uvm.edu\">Terence Bradshaw<\/a><\/p>\n<p>I\u2019ll keep this short and to the point. In spite of, or rather in keeping with, what I said the other day, fire blight risk is increasing in Vermont orchards. I\u2019m seeing sustained warm, sunny, relatively windless, and dry conditions for the next 5-7 days, with increasing risk of rain as next week starts. The heat is driving the bacterial population to increase pretty rapidly. Warmth suitable for infection is present. Open blossoms are present. The question is whether ot not you a) have fire blight inoculum in or near your orchard and b) whether or not wou\u2019ll get the necessary wetting to cause infection. For the first one, if you\u2019ve ever had any fire blight in the past couple of years, assume that you have inoculum. The population is moving too rapidly to assume otherwise.<\/p>\n<p>For the second, you may want to wait things out until just before a rain on Monday or Tuesday, but what if ypu miss a dew event? Sunday morning looks like there\u2019s potential for some dew, and that\u2019s enough.<\/p>\n<p>Anyone in any stage of bloom, is to get a streptomycin (or pick your organic biocontrol of choice, but I can\u2019t personally vouch for any at this time) spray on sometime between Friday and Sunday morning. Once a blossom is treated, it\u2019s protected, so later is better to ensure you cover the maximum number of blossoms. But don\u2019t wait so late that you miss a good spray window. Strep should be applied 16 oz per acre in sufficient water to get good wetting, amd I recommend Regulaid or another organosilicone wetting agent be included.<\/p>\n<p>Where trade names or commercial products are used for identification,<\/p>\n<p>no discrimination is intended and no endorsement is implied.<\/p>\n<p>Always read the label before using any pesticide.<\/p>\n<p>The label is the legal document for the product use.<\/p>\n<p>Disregard any information in this message if it is in conflict with the<\/p>\n<p>label.<\/p>\n<p>The UVM Tree Fruit and Viticulture Program is supported by the<\/p>\n<p>University of Vermont Agriculture Experiment Station, a USDA NIFA E-IPM<\/p>\n<p>Grant, and USDA Risk Management Agency Funds.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>By Terence Bradshaw I\u2019ll keep this short and to the point. In spite of, or rather in keeping with, what I said the other day, fire blight risk is increasing in Vermont orchards. I\u2019m seeing sustained warm, sunny, relatively windless, and dry conditions for the next 5-7 days, with increasing risk of rain as next &hellip; <a href=\"https:\/\/blog.uvm.edu\/fruit\/2020\/05\/21\/fire-blight-alert-2\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Fire blight alert<\/span><\/a><\/p>\n","protected":false},"author":2068,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[],"tags":[36708,107009],"class_list":["post-1328","post","type-post","status-publish","format-standard","hentry","tag-ipm","tag-tree-fruit"],"jetpack_publicize_connections":[],"featured_image_src":null,"featured_image_src_square":null,"author_info":{"display_name":"fruit","author_link":"https:\/\/blog.uvm.edu\/fruit\/author\/fruit\/"},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4nZlV-lq","_links":{"self":[{"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/posts\/1328","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/users\/2068"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/comments?post=1328"}],"version-history":[{"count":0,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/posts\/1328\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/media?parent=1328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/categories?post=1328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/tags?post=1328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}